第二十一篇
Exercise is good for you, but most people really know very little about how to exercise properly. 1 when you try, you can runsintostrouble.
Many people 2 that when specific muscles are exercised, the fat in the neighbouring area is“ 3 up”.Yet the 4 is that exercise burns fat from all over 5 .
Studies show muscles which are not 6 lose their strength very quickly.To regain it needs 48 to 72 hours and exercise every other day will 7 a normal level of physical strength.
To 8 weight you should always“work up a good sweat”when exercising. 9 sweating only 10 body temperature to prevent over heating.This is 11 water loss. 12 You replace the liquid, you replace the 13 .
Walking is the best and easy-to-do exercise.It helps the circulation of blood 14 the body, and has a direct 15 on your overall feeling of health.Experience says that 20 minutes’ 16 17 is minimun amount.
18 your breathing doesn’t return to normal state within minutes after you finish 19 , you’ve done 20 .
1.A.While B.When C.As D.So
2.A.understand B.believe C.hope D.know
3.A.built B.burned C.piled D.grown
4.A.reply B.possiblility C.truth D.reason
5.A.arm B.leg C.stomach D.body
6.A.exercised B.examined C.protected D.cured
7.A.lose B.raise C.burn D.keep
8.A.lose B.gain C.keep D.burn
9.A.Certainly B.No C.Fortunately D.Probably
10.A.raises B.reduces C.destroys D.keeps up
11.A.how B.why C.nothing but D.more than
12.A.While B.Once C.As D.Whenever
13.A.weight B.muscle C.sweat D.strength
14.A.over B.around C.throughout D.with
15.A.effect B.use C.usage D.affect
16.A.education B.sleep C.exercise D.rest
17.A.one day B.a day C.everyday D.someday
18.A.But if B.But C.If D.And if
19.A.working B.walking C.exercising D.breathing
20.A.enough B.much C.too much D.much too 第二十一篇答案+解說：
1.【答案】D
【解析】因為大部分人不知道如何正確鍛煉，所以，人們在訓煉時常會遇到麻煩。句中you表示泛指。
2.【答案】C
【解析】“希望“鄰近的脂肪消耗掉，在此符合語境；understand，know不合邏輯，因為，即已”明白“，就不會不符合事實真相；believe表示的是人的得一種看法，而看法有對有錯。
3.【答案】B
【解析】下一句中再現了burn這一詞。
4.【答案】C
【解析】truth本意為“真理”，此處引申為“事實”——指實際鍛煉時脂肪消耗的情形。余者不合文意。
5.【答案】D
【解析】余者不能概全
6.【答案】A
【解析】根據常識可知，“不鍛煉的肌肉會很快喪失力量。
7.【答案】D
【解析】根據前一句“要重新獲得力量需要48到72個小時可知，每隔一天鍛煉一次可保持正常水平的體力。”
8.【答案】A
【解析】本句意思是“為了——體重，人們應該通過鍛煉來出汗”。空格處顯然應該是“減少”。而不是“增加”或”“保持”，更不可能是“燃燒”。
9.【答案】B
【解析】表示對該節首句看法的否定。首句看法的錯誤性可從下文推知。
10.【答案】B
【解析】根據to prevent over heating可知，sweating的作用是降低體溫。
11.【答案】C
【解析】loss是名詞，故前面不能填連接副詞how和why；more than“不只是”，不合文意。本題應選nothing but，全句的意思為“這(即sweating)只是人體內水分的消耗”。
12.【答案】B
【解析】意思是“一旦”，引起時間狀語從句，余者不合文意。
13.【答案】A
【解析】由To lose weight you should…可推知，余者不在本節論及范圍之內。
14.【答案】C
【解析】throughout the body遍及全身。余者不合文意。
15.【答案】A
【解析】have effect on“對……產生影響”，合乎文意，合乎搭配。
16.【答案】C
【解析】本節主要講的是鍛煉形式之一——散步。另從最后一節中也能得到暗示。
17.【答案】B
【解析】根據常識和語境可知，“每天”(而不是某一天)至少得散步20分鐘。另everyday是形容詞，不能作狀語。
18.【答案】A
【解析】與上一句中minimum amount形成對比，if引導條件句。
19.【答案】C
【解析】本節是上一節內容的繼續，論述的仍是“鍛煉”。walking不能概括全面，應舍去。
20.【答案】C
【解析】指出原因——“(運動)過量”。enough，much表意不清，much too后應接其它詞。 |
